<template>
  <di style="padding: 20px;width: 80%">
    <h2 style="margin-left: 20px;margin-top: 0px">编辑图书</h2>
    <!--  数据表单  -->
    <el-form :rules="rules" ref="ruleForm" :inline="true" :model="form" style="width: 100%" label-width="100px">
      <el-form :rules="rules" ref="ruleForm" :inline="true" :model="form" style="width: 100%" label-width="100px">
        <el-form-item label="名称" prop="username">
          <el-input v-model="form.name" placeholder="请输入名称"></el-input>
        </el-form-item>
        <el-form-item label="描述" prop="remark">
          <el-input type="textarea" v-model="form.description" placeholder="请输入描述"></el-input>
        </el-form-item>
        <el-form-item label="出版时间" prop="publishData">
          <el-date-picker
              v-model="form.publishDate"
              type="date"
              value-format="yyyy-MM-dd"
              placeholder="请选择出版日期">
          </el-date-picker>
        </el-form-item>
        <el-form-item label="作者" prop="author">
          <el-input v-model="form.author" placeholder="请输入作者"></el-input>
        </el-form-item>
        <el-form-item label="出版社" prop="publisher">
          <el-input v-model="form.publisher" placeholder="请输入出版社"></el-input>
        </el-form-item>
        <el-form-item label="分类" prop="category">
          <el-cascader
              :props="{ value: 'name', label:'name'}"
              v-model="form.categories"
              :options="categories"
          >
          </el-cascader>
        </el-form-item>
        <el-form-item label="标准码" prop="bookNo">
          <el-input v-model="form.bookNo" placeholder="请输入标准码"></el-input>
        </el-form-item>
        <el-form-item label="借书积分" prop="score">
          <el-input-number v-model="form.score" @change="handleChange" :min="1" :max="10" label="所需积分"></el-input-number>
        </el-form-item>
        <el-form-item label="封面" prop="cover">
          <el-upload
              class="avatar-uploader"
              :action="'http://localhost:9090/api/book/file/upload?token=' + this.admin.token "
              :show-file-list="false"
              :on-success="handleCoverSuccess"
          >
            <img v-if="form.cover" :src="form.cover" class="avatar">
            <i v-else class="el-icon-plus avatar-uploader-icon"></i>
          </el-upload>
        </el-form-item>
      </el-form>
    </el-form>

    <!-- 按键 -->
    <div style="text-align: center; margin-top: 30px">
      <el-button type="primary" @click="save" size="mediu">提交</el-button>
      <!--      <el-button type="danger">取消</el-button>-->
    </div>
  </di>
</template>

<script>

import request from "@/utils/request";
import Cookies from 'js-cookie'


export default {

  name: "EditBook.vue",
  data() {
    return {
      admin: Cookies.get('admin') ? JSON.parse(Cookies.get('admin')) : {},
      form: { score:4 },
      categories:[],
      rules: {
        name: [
          {required : true, message: '请输入图书名称', trigger: 'blur'},
        ],
        score: [
          {required : true, message: '请输入积分', trigger: 'blur'},
        ],
        bookNo: [
          {required : true, message: '请输入标准码', trigger: 'blur'},
        ]
      }
    }
  },
  created() {
    request.get('/category/tree').then(res => {
      this.categories = res.data
    })

    const id = this.$route.query.id
    request.get("/book/" + id).then(res => {
      this.form = res.data
      if (this.form.category) {
        this.form.categories = this.form.category.split(' > ')
      }
    })
  },
  methods: {
    handleCoverSuccess(res) {
      if (res.code === '200' ) {
        console.log("res.data")
        this.$set(this.form, 'cover' , res.data )
      }
    },
    save() {
      request.put('/book/update',this.form).then(res => {
        if (res.code === '200') {
          this.$notify.success('更新成功')
          this.$router.push("/bookList")
        }else {
          this.$notify.error(res.msg)
        }
      })
    }
  }
}
</script>


<style>
.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.avatar-uploader .el-upload:hover {
  border-color: #409EFF;
}
.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  line-height: 178px;
  text-align: center;
}
.avatar {
  width: 178px;
  height: 178px;
  display: block;
}
</style>